Sometimes your new supplier may take an advance Direct Debit payment before your supply has even started.
Because the flip process takes a long time to complete, and can be cancelled during the cooling off period, your original supplier will continue billing you as normal until the flip is completed
This is a normal practice especially for smaller suppliers in the industry. This is to ensure that they have the right amount of energy in advance to supply your home.
Flipper will always let you know if this will happen in our new deal emails to you, and your supplier will also include this information in their welcome packs.
If you did have any concerns about any payments being taken, you would need to speak to your supplier directly to discuss your options.